John marquis



@uiten tatrs'atmt @fitug IMPROVED SIPHON PROPELLBR.

@te .tlgehule referat tu in tigers Enters @tout mit .mailling pnt nftige sume.

TO ALL WHOM IT MAY CONCERN:

Be it knownthat I, JOHN MARQUIS, of San Erancisco, county of SanFrancisco, State of California, have invented a new' SiphonSteam-Vessel; and I do hereby declare the followingdescription andvaccompanying drawings 'are suicient to enable any person skilled in theart or science to which it most nearly appertains to make and use mysaid invention without further invention or experiment.

The nature ofV my invention is to provide the means of propelling avessel through the water without the aid of'the ordinary steam engine,paddles, and machinery nowin use; and consists in elevatingthe water toa certain height above the water line of the vessel, and allowing it todescend upon the surface of the wat-er. in which the vessel iioats'. Y pi 1 l,

In order to accomplish this employ a steam-Siphon, consistingoffa pipe?placed transversely across the vessel abaft of amidships, with radialarms attached at each end,` and extending down upon each side of thevessel to near the surface of the water. A vertical pipe is attached tothe transverse pipe near the centre, a'nd descends to the water throughthe vessel, passing through an inverted trough above the keel, anopening or well being made in the bottom of the vessel corresponding tothe size of that ofthe trough. In front of the vertical pipe isplacedthe engine and boiler for steam or hot` air of sutlicientcapacity-for operating the siphon. A small pipe leads frornthe boiler orhot-'air chamber ofthe engine to the vertical pipe, regulated by a valveor valves. The vacuum created will raise the water to the desiredheight, and it will descend in the opposite direction by gravity with aforce equal to its height and velocity. Referring to the drawings tomore fully illustrate and describe my inventioni Fgurel is a sideelevation with section removed.

Figure 2, a plan.

Figure 3, an end section. i

Similar letters' indicate like parts in each of the figures. v 1

A represents a boiler, having a steam-drum, B, placed above it. C,smoke-stack. D represents the steam- Siphon, having discharge branchpipes EE2 E3 Ei, which should be provided with proper sluice-gates orvalves, so-as to turn the. water in either direction for backing orpropelling the vessel. F is'a steam or hotair pipe, Vleading from theboiler to the .Siphon D, which may enter it at any height or in anyposition, according to the elevation desired. l

o I am aware that other means have been employed for hydraulicpropulsion, as, for instance, in the trial ofv the jet on board oftheEnglish steamer Water-Witch, in which an engine of one hundred and sixtyhorse-power was employed, which, by the aid of a large 'turbinewater-wheel, sucked in and ejected three hundred tous of. water perminute.

It is proposed in the use of my invention to substitute for the engineand turbine-wheel a steam-siphon-` pump, to be worked by a jet of steam,thereby saving the space occupied by the engineand turbine-wheel forpassengers and freight. That this can be done will be seen by thefollowing calculation, which shows the power with which the threehundred tons of water per minute are ejected from the nozzle ofthe pipesemployed, reckoning the tonat twothousand pounds. `We have 300 tons ofwater X2,000= 600,000 pounds X 9=5,400,000+ 33,000=163 horse-power. Fromthis we draw the conclusion that it requires one hundred and sixty-threehorsepower ito raise three hundred tons of water (9) nine feet, andthepressure due to the power and velocity expendedinraising the water isequivalent to the power with which the water is propelled from the sidesof the boat, that is to say, the water is propelled with a force thatwould raise it nine (9) feet, and 'if we acquire this elevation abovethe water line on boa-rd a vessel by means `of a steam-Siphon, the fallof water from this height will be as above, or 300 tons X2,000=600,000pounds 9 feet perpendicular descent=5,400,000-:

33,000: 163 horse-power. It may be necessary to admit air at the top ofthe discharge pipes and allow the natural flow of the water, if itis`not found desirable to use the atmospheric pressure caused by theSiphon.

In the above calculation no account is taken of the loss by friction,which I am `fully persuaded will not be great. i

The height to which I wish -to raise the water will depend on the fall Iwish to get.

I am aware also that attempts have been made toipropel vessels' by meansof pipes placed in the boatthori zontal with the water line,;and"belowthe surface, having openings near the bow and at the stern opening ofthe pipes, running entirely through the boat, the arrangement of thesepipes being the same as the steam-Siphon. This was done under a falseconception and application of the philosophy of the working ofthesiphon. Itis true the steam-siphonwill work placed in this manner,but the rush of water into the suction pipes in its ejection from thedischarge pipe has no eiect in propelling the boat, as there was noconnection with it, but-merely a rush of water through the pipes.Thisarrangement might be represeiited by a boat having pipes through it,as described, and placed in a supplied current, and the Water flowing,`through would be expected to force the boat up stream. The only powerthat can be obtained in this Way is the force of the steanr which isused to cause the vacuum, and only in proportion tothe size of the jetof steam do we realize power, as if this were the cylinder-head.

New, if water is raised on the boat, and by some means ejected, eitherby another Siphon-pump or by its own weight and Yelocity upon a body ofwater, (the water having some connection with the boat,) itwill propelit as the sky-rocket is propelled by the explosion from one endrwhilebythe former mode, above described, the boat would represent a rocket withboth ends open.V Again, if two siphons are employed, and with one wateris drawn into a tank or well in the boat, and with the otherwithdrawn-from thisA tank and ejected from the boat, then, in that case,the boat would move through the water with a power in .proportion as'thewater is expelled from theboat. I i

The: discharge pipes may be placed at any angle desired, or be-attachedso as to cause the water to fall per pendicularly to near their ends,and turn with a curve, so as to eject the water nearly horizontal withthe water line. But I consider the angle of forty-five degrees with thewater line, as shown, the best inelinationto obtain the largestpercentage of power, The weight 4of the water which is constantlypassing down the'inc'line branch .pipes may also-be found to have abeneci'al effect toward the propulsion of the vessel by its reaction.

My siphon is constructedon the same principle as those in use forbilge-pumps, .and may be provided with gates to shut the wterfrom thewell, and openings with gates or sluiee-valves that I'nay be opened topump the water from the vessel in ease of disaster fromleakage.

Having thus described my invention, what I claim, and desire toseeurebylietters Patent, .is--

The propelling of a 'vessel by-water raised to any height that can beacquired by means of a steam or hotA air siphon, or its' equivalent, thefall of the water from this height being the propelling power, either byits own 'weight arid velocity, or pressure, substantially as described.i e

In Witness whereof I have hereunto set my hand and seal'. l `JOHNMARQUIS. [L S.]

Witnesses:

C. W. M. SMITH, GEO. H. STRONG.

